Socket bushing or fitting for electrical purposes.



No. 846,158. PATENTED MAR. 5, 1907. w. B. STEWART. SOCKET BUSHING 0R FITTING FOR ELECTRICAL PURPOSES.

APPLICATION FILED AUG. 9. 1906.

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5 trio fixture. Fig. 2 represents a perspective UNITED STATES ATENT- OFFICE:

WILLIAM BURNETT STEWART, or PHILADELPHIA, PENNSYLVANIA; I

SOCKET BUSHING R FITTING FOR ELECTRICAL PURPOSES- Specification of Letters Patent.

Patented March 5, 1907.

Application filed A gust 9,1906, Serial No. 329,871.

To all whom it may concern: I

Be it known that 1, WILLIAM BURNETT STEWART, a citizen of the United States, re-

when the sections are placed together the siding in the city and county of Philadelphia, State of Pennsylvania, have invented a new and usefulSocket Bushing or Fitting for Electrical Purposes, of which the following is a specification. I I

My'invention consists of a socket bushing or fitting for electric lamps, cut-outs, and other electric fixtures formed of sections, each of-which has on its interior the half of an elliptical recess, the same being adapted to receiva length of an electrical wire or conductor, so

that when the sections are placed together and the bushing or fitting is secured in position the two lengths of wires or conductors occupy a position side by side in the complete elliptical recess and are bound against each other, whereby they are prevented from slipping in the plug and the terminal connections of said conductors are relieved of strain.

Figure 1 represents a section ofa socketbushing, the same being applied to .an elecview of saidjbushingl Fig. 3 represents a side elevation of the sections of the bushing, taken from the inner faces thereof. Figs. 4 and 5 represent,respectively, views of opposite ends of said bushing, the sections being having the plug or bushing proper, D, fitted therein, the latter being constructed of insulating material, it being seen that said plug is lon itudinally divided, forming the matched sections E E, each having at. the center of its inner face the groove or recess F, which is half of an ellipticahshaped figure, so that grooves or recesses form a single recess G of the shape of a complete ellipse or oblong figure.

In each groove or recess 'F is a length of an electrical wire or conductor H, the two lengths thus being side by side, when as the plug is screwed into the neck of the cap the sections are brought closely into contact and said conductors compressed,-embraced, and

clamped by the same, whereby they are firmly held in and-by the plug, the socket being thereby suspended from said conductors Without strain on the terminal connections of the latter.

The walls of the recesses F are formed with threads or serrations J, with which the conductors are forcibly pressed into engagement by the action of the plug .1) while being screwed into the neck C, thuspreventing any possible slipping of the conductors in said recesses.

Having thus described my invention, what I'clairn as new, and desire to secure byLetters Patent, is

1. In an electric device, a bi shing or fitting, the latter consisting of a bushing formed of sections, each provided with a single recess in its inner face, each recess being of the form of the portion of an elli se, the recesses when the sections are toget er being of the form of a complete ellipse forming a common opening for the plurality of wires placed side by side therein.

2. An electric device having a socket with a screw-threaded neck thereon and a bu'shin or-fitting ada ted to be screwed into sai socket and tig tened therein and formed of I sections, each providedwith a single partlyoblong recess therethrough, the recesses,"

when the sections are together, forming -a completely-oblong recess adapted to receive a plurality of wires or conductors and clamp the same side by side against each other.

' WILLIAM BURNETT STEWART.

Witnesses:

J OHN A;WIEDERSEEIM, S. R. CARR. 

